H - Electricity – 04 – Q
Patent
H - Electricity
04
Q
H04Q 7/38 (2006.01) H04Q 7/22 (2006.01)
Patent
CA 2297049
A system and method for improving the accuracy of a location measurement within a telecommunications system is disclosed. An elliptical search area is defined about an estimated mobile terminal location within the telecommunications system. The elliptical area is an optimum area for locating the mobile terminal, with size, eccentricity, and orientation of the ellipse being determined by the configuration of base stations, the mobile terminal's position, a desired probability of coverage, and the known measurement errors in the quantities measured by the ALI technique.
L'invention concerne un système et un procédé permettant d'améliorer la précision des calculs de position à l'intérieur d'un système de télécommunications. Une zone de recherche elliptique est définie autour d'une position estimée de terminal mobile à l'intérieur du système de télécommunications. La zone elliptique est une zone optimale permettant de localiser le terminal mobile, la taille, l'excentricité et l'orientation de l'ellipse étant déterminés par la configuration des stations de base, par la position du terminal mobile, par la probabilité de couverture voulue et par les erreurs de calcul connues concernant les quantités calculées au moyen de la technique ALI.
Panchapakesan Shankari
Yost George P.
Ericsson Inc.
Marks & Clerk
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